01 - Preheat oven to 350°F. Line a 9x13-inch baking sheet with parchment paper and lightly grease.
02 - Whisk together flour, sugar, salt, and baking powder in a mixing bowl until well blended.
03 - Beat eggs, milk, melted butter, and vanilla extract in a separate bowl until homogeneous.
04 - Pour wet ingredients into dry ingredients. Mix until just combined, being careful not to overmix.
05 - Spread batter evenly onto the prepared baking sheet. Bake for 12-15 minutes until cake springs back when touched. Cool completely.
06 - Whip heavy cream with powdered sugar and vanilla extract until stiff peaks form.
07 - Remove cooled cake from pan onto a clean surface. Trim edges for neatness. Spread whipped cream evenly over cake, leaving a 1/2-inch border along one long side. Sprinkle diced strawberries over the cream.
08 - Starting from the opposite long side, tightly roll the cake using parchment paper to guide. Refrigerate for 20 minutes to set.
09 - Cut the rolled cake into 8 even pieces to resemble sushi rolls. Top each piece with a strawberry slice and sprinkle with fresh mint if desired.
10 - Serve chilled for best texture and flavor.